---
id: CVE-2026-110923
title: A flaw was found in OpenSSH
summary: >-
  A flaw was found in OpenSSH. During an sftp copy, a malicious server can
  supply an empty name, a slash-only path, or a ".." basename that sftp uses as
  the local destination, writing outside the directory the user selected.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'
cwe:
  - CWE-22
vendor: Red Hat
product: openssh
affected:
  - openssh (all versions)
  - openssh (all versions)
  - openssh (all versions)
  - openssh (all versions)
  - openssh (all versions)
  - openshell (all versions)
  - openssh (all versions)
  - openshift/ose-rhel-coreos-8 (all versions)
  - openshift/ose-rhel-coreos-9 (all versions)
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T06:17:01.030'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110923'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-110923'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2553028'
    label: secalert@redhat.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-15T05:52:45.970Z'
---

## Overview

A flaw was found in OpenSSH. During an sftp copy, a malicious server can supply an empty name, a slash-only path, or a ".." basename that sftp uses as the local destination, writing outside the directory the user selected.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.